Is CVE-2026-78387 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-78387 being exploited in the wild.

How severe is CVE-2026-78387?

Informational severity, published 24 August 2026.

Is there a fix for CVE-2026-78387?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-78387 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-78387?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-78387: RansomLook authorization bypass in web configuration editor

CVE-2026-78387 · Severity: info · Published 2026-08-24

RansomLook is a web-based security monitoring application that provides administrators with a configuration interface. An authenticated user with low-level privileges can bypass authorization checks to modify critical application settings including notification systems, authentication configuration, and external service integrations. This could allow an attacker with a compromised standard user account to disable security features, redirect alerts, or cause service outages.

Quick answers

Is CVE-2026-78387 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-78387 being exploited in the wild.
How severe is CVE-2026-78387?: Informational severity, published 24 August 2026.
Which products and versions are affected?: RansomLook.
Is there a fix for CVE-2026-78387?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-78387 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-78387?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an authorization bypass in the /admin/config endpoint of RansomLook's web configuration editor. While the endpoint requires an authenticated session, it fails to perform explicit privilege or administrator authorization checks before granting access to configuration-management functionality. An authenticated low-privileged user can submit crafted configuration values that are written directly to config/generic.json, affecting notification, LDAP, SMTP, and general application settings. The configuration file contains sensitive values such as passwords, tokens, and API keys. The patch removes the /admin/config route entirely, preventing web-based configuration modification.

Affected products

RansomLook

Timeline

2026-08-24: disclosed

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